Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

1293 posts

Uber Geek
+1 received by user: 30

Topic # 182554 20-Oct-2015 20:08
Send private message

We have a granite base garden so very difficult to grow.  Very dry and sandy.  Even if you flood the garden up and then you dig into the soil it's actually dry inside. 

Question - we have blueberry for a year now in a pot doing well.  Under instruction we added peat which is acidic.  Because due to our granite garden we bought a pH meter and tested the soil.  The composted garden is 7 and the blueberry is 6.5.  Given the slight difference can we use peat for normal vege plants?  For the blueberry do you suggest we add sulphate ammonia to increase the acidity? 

Create new topic
101 posts

Master Geek
+1 received by user: 24

  Reply # 1411270 22-Oct-2015 17:57
Send private message

6.5 is slightly acid - and is right in the sweet spot.

I'd be wary of attempting to manage ph in a small container garden - it's more trouble than it's worth imho. Unless you are committed to container gardening, and using chemical fertiliser, and willing to go to the effort of micro-managing your grow.

I've found the easiest results in container gardening come from using good compost along with organic fertiliser. If you can build up healthy living soils in your pots, the plants and soil microbes will manage all ph issues, ensure you don't get nutrient deficiency and give way better water retention in dry spells. Also less nutrient leaching from your container.

Peat - you using Yates Hauraki Gold or Tui peat(preloaded with gypsum+blood&bone)?

Peat is a good way of introducing humus into a sandy soil. Would definitely use it in your situation. Along with plenty of good compost and a little gypsum for calcium and sulfur.

Granite is supposed to tend towards acidic, so definitely important to have a source of calcium such as garden lime (calcium carbonate) or gypsum (calcium sulfate). Avoid dolomite lime (calcium magnesium carbonate) as it has too much magnesium compared to the level of calcium - this page has a nice write up of issues when using dolomite.

1293 posts

Uber Geek
+1 received by user: 30

  Reply # 1411332 22-Oct-2015 19:28
Send private message

Yes, I have Tui Peat (yes preloaded with gypsum and blood / bone).  Thanks so I can use this on the general garden then?  About the only thing that grow are lettuce and cucumbers and spring onions.  Even silver-beet and broccoli struggle.  So far I have only used them on blueberries thinking peat was on the acid side. 

I will add some pine needles to the blueberry. 

I have moved the citrus plants back to pots now.  Didn't do very well.  Will apply an application of Yates Conqueror Oil and Yates Copper Oxycholoride.

Images to our garden, the previous owner only had trees and shrubs which we got rid of.


101 posts

Master Geek
+1 received by user: 24

  Reply # 1411426 22-Oct-2015 21:59
Send private message

I'd be fine forking in the peat - go nuts. Get a sack or two of high quality bagged compost while you're at it.

A good basic all-round organic fertiliser is Yates Organic Lifter - might be worth while throwing a few handfuls around your plants while you're at it. It'll take some time to build up a rich healthy soil, but definitely keep at it.

Just watch out on fresh pine needles - if they're fresh they're reputed to be slightly acidic. They also take ages to break down - the hard wax coating means they take a good few years before they form a decent leaf mold which will form humus in your soil. If you have heaps of them it might pay to just pile them for a few years before use.

Crappy soil on a steep slope - looks like Wellington?

1293 posts

Uber Geek
+1 received by user: 30

  Reply # 1411448 22-Oct-2015 22:56
Send private message

Yes pine needles acidic for blueberry.

Yes Wellington. I know friends who bought houses in new areas. No garden at all with a hill at the back look up the neighbours.

Might get a compost bin this year.

1293 posts

Uber Geek
+1 received by user: 30

  Reply # 1411450 22-Oct-2015 22:59
Send private message

Yes we got Yates Potting Mix and Yates Dynamic Lifter Fruit.

The past we used compost and blood bone and sheep pellets into that sandy soil.

1932 posts

Uber Geek
+1 received by user: 152

  Reply # 1411467 22-Oct-2015 23:45
Send private message

You could also visit your local BP or coffee shop and score a bag of grinds. Not only smells good.. but gardenable :)

Added bonus.. snails hate it.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Avondale College students at top of Microsoft Office Specialist World Championship
Posted 21-Aug-2017 14:11

Garmin introduces inReach SE+ and inReach Explorer+
Posted 21-Aug-2017 14:05

Public Wi-Fi plus cloud file sharing
Posted 18-Aug-2017 11:20

D-Link NZ launches professional Wireless AC Wave 2 Access Point for businesses
Posted 17-Aug-2017 19:25

Garmin introduces the Rino 700 five-watt two-way handheld radio
Posted 17-Aug-2017 19:04

Garmin announces the Foretrex 601 and Foretrex 701 Ballistic Edition for outdoor and tactical use
Posted 17-Aug-2017 19:02

Brightstar announces new distribution partnership with Samsung Knox platform in Australia
Posted 17-Aug-2017 17:07

Free gig-enabled WiFi network extends across Dunedin
Posted 17-Aug-2017 17:04

Samsung expands with connect Gear S3 Frontier
Posted 17-Aug-2017 15:55

Fact-checking Southern Cross Next cable is fastest to USA
Posted 17-Aug-2017 13:57

Thurrott says Microsoft Surface is dead last for reliability
Posted 16-Aug-2017 15:19

LibreOffice 5.4 works better with Microsoft Office files
Posted 16-Aug-2017 13:32

Certus launches Cognition
Posted 14-Aug-2017 09:31

Spark adds Cambridge, Turangi to 4.5G network
Posted 10-Aug-2017 17:55

REANNZ network to receive ongoing Government funding through to 2024
Posted 10-Aug-2017 16:05

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.